/*
 * Copyright (c) 2007-2012, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

/*
 * Copyright 1999-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/*
 * $Id: EmptyIterator.java,v 1.2.4.1 2005/09/15 08:15:05 suresh_emailid Exp $
 */
package com.sun.org.apache.xml.internal.dtm.ref;

import com.sun.org.apache.xml.internal.dtm.DTMAxisIterator;
import com.sun.org.apache.xml.internal.dtm.DTM;

/**
 * DTM Empty Axis Iterator. The class is immutable
 */
public final class EmptyIterator implements DTMAxisIterator {
    private static final EmptyIterator INSTANCE = new EmptyIterator();

    public static DTMAxisIterator getInstance() {
        return INSTANCE;
    }

    private EmptyIterator() {
    }

    public final int next() {
        return END;
    }

    public final DTMAxisIterator reset() {
        return this;
    }

    public final int getLast() {
        return 0;
    }

    public final int getPosition() {
        return 1;
    }

    public final void setMark() {
    }

    public final void gotoMark() {
    }

    public final DTMAxisIterator setStartNode(int node) {
        return this;
    }

    public final int getStartNode() {
        return END;
    }

    public final boolean isReverse() {
        return false;
    }

    public final DTMAxisIterator cloneIterator() {
        return this;
    }

    public final void setRestartable(boolean isRestartable) {
    }

    public final int getNodeByPosition(int position) {
        return END;
    }
}
